605-00011 Parallax Undefined or Miscellaneous (Other) In Stock
Parallax 605-00011 is an alcohol gas sensor module for detecting ethanol (C2H5OH) vapor concentration in air, with an analog output voltage that varies with gas concentration from approximately 10 ppm to 1000 ppm. Operates on a 5 V supply and integrates directly with microcontroller ADC inputs for embedded air quality monitoring. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Parallax
- Package
- Other
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 605-00011 Datasheet PDF
- Category
- Undefined or Miscellaneous
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Detects ethanol (C2H5OH) vapor concentration across a measurement range of approximately 10 ppm to 1000 ppm for breath and ambient air monitoring
- Analog voltage output scales with detected gas concentration, enabling direct connection to any microcontroller ADC input without additional signal conditioning
- 5 V single-supply operation simplifies integration into standard Arduino, Raspberry Pi, and Parallax Propeller development platforms
- Compact breakout-ready form factor with labeled signal, power, and ground pins reduces wiring complexity in prototype and educational designs
Applications
The Parallax 605-00011 alcohol gas sensor is used in breathalyzer prototypes, fermentation monitoring systems, and indoor air quality detectors where ethanol vapor levels must be measured and reported in real time. It is commonly integrated into Arduino-based educational projects, maker electronics kits, and industrial fume detection systems that need a low-cost analog ethanol sensor with direct microcontroller compatibility. Its straightforward analog output simplifies logging ethanol concentration data to displays or wireless transmitters in DIY safety monitoring applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 605-00011:
Frequently Asked Questions
What gas does the Parallax 605-00011 detect, and over what concentration range does it operate?
The 605-00011 detects ethanol (C2H5OH) vapor in air. The sensor responds across a concentration range of approximately 10 ppm to 1000 ppm, producing an analog voltage output that increases with rising ethanol concentration. This range covers typical breath alcohol levels and light industrial fume concentrations for safety threshold monitoring.
What supply voltage does the Parallax 605-00011 require, and how does it interface with a microcontroller?
The 605-00011 operates from a 5 V power supply. It provides an analog voltage output that can be read directly by a microcontroller's ADC pin without additional signal conditioning circuitry. A 10-bit ADC at 5 V reference resolves approximately 4.9 mV per step, giving sufficient resolution to detect ethanol concentration changes of a few tens of ppm across the sensor's output range.
How long does the Parallax 605-00011 need to preheat before readings stabilize, and why is this important?
Metal oxide gas sensors like the 605-00011 typically require a preheat time of 20 to 30 seconds after power-on for the sensor element to reach its operating temperature and for the output voltage to stabilize. Reading the analog output before the preheat period ends will give artificially low or inconsistent ethanol concentration values, so firmware should insert a startup delay before beginning ADC sampling in data logging or alarm applications.
In what environments can the Parallax 605-00011 be used, and are there cross-sensitivity limitations to consider?
The 605-00011 is suitable for indoor ambient air monitoring, laboratory fume detection, and hobbyist breathalyzer projects at standard atmospheric pressure and temperatures from approximately 0 degrees C to 50 degrees C. Designers should note that metal oxide alcohol sensors can cross-react with other flammable gases such as methanol, acetone, and hydrogen, which may generate false-positive readings in environments where multiple volatile organic compounds are present. For regulatory breathalyzer applications requiring selectivity, a dedicated electrochemical sensor with certified calibration is recommended instead.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About Parallax
Parallax is a leading electronic component manufacturer. FindMyChip sources Parallax ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”